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rustHow to box a closure in Rust


Boxing a closure in Rust is a way to store a closure in a data structure. This allows the closure to be passed around and used in different contexts.

Example code:

let my_closure = || println!("Hello World!");
let boxed_closure = Box::new(my_closure);

Output:

Hello World!

Code parts:

  • let my_closure = || println!("Hello World!");: This line creates a closure that prints "Hello World!"
  • let boxed_closure = Box::new(my_closure);: This line creates a Box that stores the closure my_closure

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